Hello,
There is 100% a confirmed cheater on this server: DayZ AP - SY 1059 - 128.0.114.34:10800
It occurred at approx. 6:48pm, Brisbane, Australia time. It was night, me and a friend in a tree hiding, and we BOTH died at EXACTLY the same time, instant death, no shots heard. IT occurred at NW airfield in the forest between the air strip and the northern most base there.
It was basically impossible for both of us to die at the same time. We had engaged in no combat and had seen no one before it happened. I believe my in-game name is Braff.